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Regional ecosystem details for 1.11.13

Regional ecosystem 1.11.13
Vegetation Management Act class Of concern
Wetlands Not a Wetland
Biodiversity status Endangered
Subregion 3
Estimated extent1 Pre-clearing 400 ha; Remnant 2021 400 ha
Short description Grassland on clays derived from metamorphic rocks
Structure code Open Tussock Grassland
Description Mixed grassland including Astrebla pectinata, Eulalia aurea, Iseilema spp., Brachyachne convergens, Bothriochloa ewartiana, Aristida latifolia, Dichanthium spp. and Themeda triandra with emergent trees of Corymbia terminalis, Atalaya hemiglauca or Eucalyptus leucophylla and associated Triodia longiceps around outcropping rocks. Occurs on minor areas of clay derived from basic metamorphic rocks. Not a Wetland. (BVG1M: 30b).
Fire management guidelines INTERVAL: Fire interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Do not burn deliberately. The grasses and forbs of Astrebla spp. dominated communities do not require fire for regeneration. Protection relies on management of fire in the surrounding country to prevent running fires entering Astrebla spp. communities, particularly at times of low soil moisture. ISSUES: Fire can sometimes be used as a tool to control woody thickening and woody weeds in grasslands. Moderate intensity fire is required for a successful kill of the woody species but good moisture levels are required to ensure recovery of the ground layer. Large scale germination of woody species is most likely to occur in high rainfall years. The best management opportunity is usually after storms at the end of the subsequent dry season, although exclusion of grazing pressure may still be required to ensure sufficient fuel loads.
Comments 1.11.13: This vegetation community was previously mapped as 1.11.3x2. Occurs in the south of the bioregion. Subject to very high grazing pressure because it occurs as small patches in broad infertile landscapes.

1 Estimated extent is from version 13.1 pre-clearing and 2021 remnant regional ecosystem mapping. Figures are rounded for simplicity. For more precise estimates, including breakdowns by tenure and other themes see remnant vegetation in Queensland.

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Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
14 May 2024